The 400GBASE-DR4 silicon photonics module, MTP/MPO-12 connector, up to 500m over parallel single-mode fiber. It is compliant with QSFP-DD MSA, IEEE 802.3bs protocol and 400GAUI-8 standards.
The 400 Gigabit Ethernet signal is carried over four parallel lanes by one wavelength per lane. It can be used as a 4x100G breakout to QSFP28-DR-100G.

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Cisco QDD-400G-DR4-S Compatible 400G DR4 QSFP-DD PAM4 1310nm 500m DOM MTP/MPO-12 APC SMF Optical Transceiver Module, Support 4 × 100G-DR
Hot #128242
Hot #128242
799,00 € (Excl. VAT)
FS P/N: QDD-DR4-400G-Si950,81 € (Incl. VAT)
FS P/N: QDD-DR4-400G-Si
800 Sold
22 Reviews
18 Questions
Transceiver Models:
4 In DE Warehouse, Get It By Dec 12, 2023
292 In Global Warehouse, Get It By Dec 22, 2023
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Cisco QDD-400G-DR4-S Compatible 400GBASE-DR4 QSFP-DD PAM4 1310nm 500m DOM Silicon Photonics Transceiver Module (SMF, 1310nm, 500m, MTP/MPO, DOM)
Specifications
Cisco Compatible
QDD-400G-DR4-S
Vendor Name
FS
Form Factor
QSFP-DD
Max Data Rate
425Gbps (4x106.25Gb/s)
Wavelength
1310nm
Max Cable Distance
500m
Connector
MTP/MPO-12 (APC)
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-2.9~4.0dBm
RX Power
-5.9~4.0dBm
Powerbudget
3dB
Modulation
8x 50G PAM4
Power Consumption
≤10W
Extinction Ratio
3.5dB
DDM/DOM
Supported
Commercial Temperature Range
0 to 70°C (32 to 158°F)
DSP
TX and RX
Inbuilt FEC
No
Core Size
9/125um
Packaging Technology
COB
Protocols
IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1
Warranty
5 Years
Quality Testing Program
Quality Testing Program

Optical Transceivers Testing Learn more
Quality Certifications
To get the detailed certification, please go to the Product Compliance Status for download.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
Connectivity Solutions
Leaf-spine Connections

400G Connectivity with Direct Connect Cabling

See more
Leaf-spine Connections

400G Connectivity with Direct Connect Cabling

400G to 800G Migration

100G to 400G Migration

400G Structured Cabling Connections

Features
Upgrade Your Network One Site at a Time
Upgrade just one site to 400G gear, and still connect it to the existing 100G sites.
Connect New 400G Sites to Legacy 100G Sites
Full Utilize Your 400G Port Bandwidth
Re-use 100G Optics in New 400G Ports
SiPh-Based High-performance Chip Designed for Data Center
Increase network uptime with silicon photonics that reduces cost of ownership.
Broadcom 7nm DSP Chip
Stable Transmission
≤10W
Low Power Consumption
53G EML Laser
Ensure Production
Tested in Host Devices for Proven Interoperability
Every unit is quality tested for compatibility in the targeted switch environment, which guarantees flawless operations.

Comprehensive Testing Increases Reliability
Qualified through a rigorous process with advanced equipments to ensure you get the high quality and reliable optics.
Optical Spectrum Test
No Packet Loss & CRC
TDECQ Test
1.68dB
Bit Error Rate Test
BER 2.4E-4
Temperature Test
0~70°C
Enable Seamless Connectivity for Your Network
Reconfiguring the transceiver to work with different brands, FS BOX offers flexibility in stock costs.
Center Wavelength | 1310nm | 1310nm | 1310nm |
Connector | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) |
Cable Distance (Max.) | 500m@SMF | 500m@SMF | 500m@SMF |
Modulation | 8x 50G PAM4 | 4x 106.25G PAM4 | 8x 50G PAM4 |
DSP | Broadcom 7nm DSP | Macom Chip | Broadcom 7nm DSP |
Transmitter Type | DFB | EML | DFB |
Packaging Technology | COB | BOX | COB |
Protocols | QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, 100G Lambda MSA, IEEE 802.3bs | QSFP112 MSA, CMIS 5.0, IEEE Std 802.3ck, IEEE 802.3bs | OSFP MSA, CMIS 4.0, IEEE 802.3bs |
Application | Data Center 800G to 2x400G Breakout 400G to 4x100G Breakout | Data Center | Data Center 800G to 2x400G Breakout 400G to 4x100G Breakout |
Specifications
Cisco QDD-400G-DR4-S Compatible 400GBASE-DR4 QSFP-DD PAM4 1310nm 500m DOM Silicon Photonics Transceiver Module (SMF, 1310nm, 500m, MTP/MPO, DOM)
The 400GBASE-DR4 silicon photonics module, MTP/MPO-12 connector, up to 500m over parallel single-mode fiber. It is compliant with QSFP-DD MSA, IEEE 802.3bs protocol and 400GAUI-8 standards.
The 400 Gigabit Ethernet signal is carried over four parallel lanes by one wavelength per lane. It can be used as a 4x100G breakout to QSFP28-DR-100G.
Specifications
Cisco Compatible
QDD-400G-DR4-S
Vendor Name
FS
Form Factor
QSFP-DD
Max Data Rate
425Gbps (4x106.25Gb/s)
Wavelength
1310nm
Max Cable Distance
500m
Connector
MTP/MPO-12 (APC)
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-2.9~4.0dBm
RX Power
-5.9~4.0dBm
Powerbudget
3dB
Modulation
8x 50G PAM4
Power Consumption
≤10W
Extinction Ratio
3.5dB
DDM/DOM
Supported
Commercial Temperature Range
0 to 70°C (32 to 158°F)
DSP
TX and RX
Inbuilt FEC
No
Core Size
9/125um
Packaging Technology
COB
Protocols
IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1
Warranty
5 Years
Quality Testing Program
Quality Testing Program

Optical Transceivers Testing Learn more
Quality Certifications
To get the detailed certification, please go to the Product Compliance Status for download.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
Connectivity Solutions
Leaf-spine Connections

400G Connectivity with Direct Connect Cabling

See more
Leaf-spine Connections

400G Connectivity with Direct Connect Cabling

400G to 800G Migration

100G to 400G Migration

400G Structured Cabling Connections

Features
Upgrade Your Network One Site at a Time
Upgrade just one site to 400G gear, and still connect it to the existing 100G sites.
Connect New 400G Sites to Legacy 100G Sites
Full Utilize Your 400G Port Bandwidth
Re-use 100G Optics in New 400G Ports
SiPh-Based High-performance Chip Designed for Data Center
Increase network uptime with silicon photonics that reduces cost of ownership.
Broadcom 7nm DSP Chip
Stable Transmission
≤10W
Low Power Consumption
53G EML Laser
Ensure Production
Tested in Host Devices for Proven Interoperability
Every unit is quality tested for compatibility in the targeted switch environment, which guarantees flawless operations.

Comprehensive Testing Increases Reliability
Qualified through a rigorous process with advanced equipments to ensure you get the high quality and reliable optics.
Optical Spectrum Test
No Packet Loss & CRC
TDECQ Test
1.68dB
Bit Error Rate Test
BER 2.4E-4
Temperature Test
0~70°C
Enable Seamless Connectivity for Your Network
Reconfiguring the transceiver to work with different brands, FS BOX offers flexibility in stock costs.
Center Wavelength | 1310nm | 1310nm | 1310nm |
Connector | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) | MTP/MPO-8 MTP/MPO-12(8 of the 12 Fibers Used) |
Cable Distance (Max.) | 500m@SMF | 500m@SMF | 500m@SMF |
Modulation | 8x 50G PAM4 | 4x 106.25G PAM4 | 8x 50G PAM4 |
DSP | Broadcom 7nm DSP | Macom Chip | Broadcom 7nm DSP |
Transmitter Type | DFB | EML | DFB |
Packaging Technology | COB | BOX | COB |
Protocols | QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, 100G Lambda MSA, IEEE 802.3bs | QSFP112 MSA, CMIS 5.0, IEEE Std 802.3ck, IEEE 802.3bs | OSFP MSA, CMIS 4.0, IEEE 802.3bs |
Application | Data Center 800G to 2x400G Breakout 400G to 4x100G Breakout | Data Center | Data Center 800G to 2x400G Breakout 400G to 4x100G Breakout |
Questions & Answers
All (18)Breakout 4x100G (2)Connectors (2)Product Comparison (2)Specification (2)Compatibility (1)Matching Product (1)Optical Signal (1)Product Recommendation (1)
Customer Reviews
C***y
Australia
November 23, 2023
I appreciate your solution that made it possible for me to establish a 400G to 100G connection.
Verified Purchase
Helpful 0
Comment 0S***n
Germany
June 07, 2023
I have tested the modules in a test environment, and it worked very well.
Verified Purchase
Helpful 0
Comment 0C***s
Canada
May 30, 2023
Hope you had a great weekend. I have received the package and put some of the optical transceivers to use. The 400G modules are working as expected and we don’t have any issues at the moment. We are very happy with the quality of your product.
Verified Purchase
Helpful 1
Comment 0See all reviews
Resources
799,00 € (Excl. VAT)
950,81 € (Incl. VAT)
4 In DE Warehouse
292 In Global Warehouse